Delays of around 20 minutes is expected on the Southern train service to Brighton from London Bridge, as Network Rail blamed "signalling failures".
A spokesman for Network Rail said:
A signalling problem at London Bridge means platforms 9 and 10 are unavailable to trains for the remainder of the day.
This is affecting Southern services in and out of the station and passengers are advised to check with Southern or National Rail Enquiries before travelling.
We are investigating the cause of the problem and apologise to passengers for the disruption this will cause.
More top news
Choudary was jailed after encouraging backing for the terrorist group IS in a series of talks posted online.
In an interview with ITV News, Antonio became the first England player to speak out about the allegations against Sam Allardyce.
It follows a multibillion-pound restoration of the former electricity generator, which has stood unoccupied for decades.